K3 Nickel-Titanium Files

Overview

K3 Files: Engineered For Efficiency

The K3 rotary file’s wide radial land provides blade support while adding peripheral strength to resist torsional and rotary stresses.

The third radial land on K3 files stabilizes and keeps the instrument centered in the canal and minimizes over engagement.

Radial land relief reduces friction on the canal wall.

Positive Rake Angle

Variable Helical Flute Angle

Wide Radial Land

Surface Reduction

Access Handle

Third Radial Land

Variable Core Diameter

Simplified Colour Coding

Safe-Ended Tip

1. Positive Rake Angle An instrument's cutting efficiency is dependant upon the
overall rake angle of the instrument's cutting blades.
Rake angles are determined by drawing a centerline parallel to
the center of the file and determining the angle relative to
the centerline. It can also be measured relative the circumference
as indicated by the green lines on the examples below.

The Profile and most other conventional instruments utilize
negative rake angles, which result in a scraping rather than
a cutting action. As dentin is dense and somewhat resilient,
cutting or chip dislodgment with negative rake angles is difficult
and very inefficient.